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The Arcteryx Alpha FL Jacket is a fast and light jacket for high aerobic, non-stop climbing routes. A clean feature set and trim fit keep the weight and packed size to the minimum while providing uncompromising breath ability. Reinforced in high-wear hip and shoulders.

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CampSaver.com

Lining up 12 pitches in a day is a serious endeavor, and while you'd prefer to do it in perfect weather sometimes that's not just how things go, so you need an ultra-light rain shell like the Arc'teryx Alpha FL Men's Jacket. The lightest Gore-Tex Pro jacket that Arc'teryx makes, the FL (Fast and Light, if you were wondering) is the speed demon of the climbing-and-alpinism-oriented Alpha series, with a lightweight 3-layer design, waterproof and breathable membrane, and taped critical seams to keep you dry without any extra bulk. Unlike average shells, the FL is designed specifically with climbers in mind. It has a trim fit to eliminate any extra material, and an e3D ergonomic design that's articulated in all the right places to facilitate climbing movements The slim profile also makes it easy to see your harness, so you don't waste time and energy trying to grab piece of gear from it, while the removable HemLock foam hem inserts keep your jacket from sliding up under your harness and leaving you exposed. The helmet-compatible StormHood adjust with a single-handed pull, and the entire package stuffs into the zippered, harness-compatible chest pocket and clips onto your harness with a webbing loop, making it easy to carry and quickly accessible when the clouds gather.

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Backcountry.com

On Sale. Free Shipping. Arcteryx Men's Alpha FL Jacket FEATURES of the Arcteryx Men's Alpha FL Jacket Nylon, plain weave N40p-X exterior is supple and lightweight; high performance GORE-TEX Pro Shell 3L features 8mm seam tape where possible for improved performance and less bulk Trim fit with e3D adds mobility yet keeps fit close to enhance breath ability; improves line of vision to see the gear on your harness Helmet-compatible Storm Hood Water Tight zipper with flap increases weather protection Single external chest pocket Included stuff sack has a clip-in webbing loop Two piece Hemlock inserts work with hem drawcord to prevent jacket from slipping out from underneath a harness SPECIFICATIONS of the Arcteryx Men's Alpha FL Jacket Weight: 13.8 oz / 310 g Fit: Trim with e3D, hip length N40p-X GORE-TEX Pro Shell 3L ARC'TERYX TRIM FIT: These trim fitting pieces share motion-friendly traits with the Arc'teryx Athletic Fit, but are patterned with lower volume for reduced bulk. Arc'teryx trim fit styles are sized for a base layer and a trim synthetic or down filled mid-layer. Check out the size guide to learn how to calculate your body measurements before selecting a size. This product can only be shipped within the United States. Please don't hate us.

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Moosejaw

The Alpha FL Jacket from ARCTERYX is a minimalist alpine shell is designed for those wanting to travel fast and light in the mountains. A clean feature set and trim fit keep the weight and packed size to the minimum while providing uncompromised breathability. Reinforced in high-wear hip and shoulders, increases the life of this shell while high performance 3 layer GORE-TEX Pro keeps you dry and on the move.